US Bridges

C-20-21 over Little Wateree Creek

FairPosted for load

Fairfield County, South Carolina · 4MI E Winnsboro · Structure no. 000000000008836

Built
1995
30 years old
Condition
Fair
inspected June 2024
Type
Tee Beam
Prestressed Concrete
Length
45 ft
1 main span
Daily traffic
125
2023 count
Owner
County
County Highway Agency

About this bridge

C-20-21 over Little Wateree Creek is a prestressed concrete tee beam carrying C-20-21 over Little Wateree Creek in Fairfield County, South Carolina. It was built in 1995, so it is 30 years old, younger than the South Carolina average of 48 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.

It carries about 125 vehicles a day, roughly 5% of them trucks, projected to reach 160 by 2043. The structure is 45 ft (13.7 m) long and 28 ft wide.

CarriesC-20-21
CrossesLittle Wateree Creek
Location4MI E Winnsboro
RouteCounty Highway 21
Coordinates34.36639, -81.02056
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionJune 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating30.3 US tons
Inventory rating12.9 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1 (+1 approach)
Design loadH 10
Structure length45 ft (13.7 m)
Longest span30 ft (9.1 m)
Deck width28 ft (8.5 m)
Roadway width26 ft (8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic125 (2023)
Projected traffic160 by 2043
Trucks5%
Lanes on structure2
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$72,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was C-20-21 over Little Wateree Creek built?

It was built in 1995, making it 30 years old in 2025.

What condition is C-20-21 over Little Wateree Creek in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in June 2024.

How much traffic does C-20-21 over Little Wateree Creek carry?

About 125 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is C-20-21 over Little Wateree Creek?

The structure is 45 ft (13.7 m) long with a longest span of 30 ft (9.1 m) and a deck 28 ft wide.

Who owns C-20-21 over Little Wateree Creek?

It is owned by the County Highway Agency.